| Stepper Motor Controller…. (24 Pins)
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LS7290, LS7290-S, LS7290-TS NEW!
Last Update: 06/13/08 |
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Controls two-phase Bipolar
and four-phase Unipolar motors |
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Inexpensive replacement for L297. |
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Direct interface to L298 for Bipolar motors |
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Interface to four AND Gates driving four N-Channel MOSFET's for Unipolar motors |
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Programmable step sizes: Full and 1/2 |
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Nominal clock frequency: 8MHz |
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Maximum stepping rate: greater then 30k per second. |
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Programmable inter-step blanking delays:
1.25us, 2.5us, 3.75us and 5us at 8Mhz. |
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H-bridge PWM resolution: 0.39% |
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Two PWM and Four Phase outputs for H-Bridge control. |
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On-chip Crystal Oscillator, RC Oscillator or External source,
controls Step Frequency and Duty Cycle. |
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Supply voltage: 3V to
5.5V |
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